I have a 98 SE. I have recently started to notice a rattling/clunking noise that seems to be coming from below the drivers side of the jeep. I hear it in first and second gear but it seems to go away or I can no longer hear it in third and up. It is louder when going over bumps that make the jeep rock from side to side. After I disengage 4WD it gets much louder so I assume it's something coming from the transfer case or transmission? Just looking for some guidance on where I should be looking to find the cause of the noise.